MILLARD WWTP - Secondary Wastewater Treatment in Adair County, Missouri

MILLARD WWTP is a municipal wastewater treatment facility located in Adair County, Missouri, United States. The plant serves a small population of 89 residents, reflecting its role in a rural community. It operates under the regulatory framework of the US Clean Water Act, which governs wastewater discharges through the National Pollutant Discharge Elimination System (NPDES) permit program. The plant provides secondary treatment, a standard level that removes biodegradable organic matter and suspended solids. Its designed capacity is 34.07 million gallons per year, with an actual discharge volume of 22.71 million gallons per year. As a small facility, it is subject to state-level oversight by the Missouri Department of Natural Resources, which issues permits and ensures compliance with water quality standards. The treated effluent is discharged into a local water body, ultimately contributing to the Mississippi River basin. The plant's operations help protect downstream aquatic ecosystems and maintain water quality in the region's streams and rivers. Given its inland location and small scale, the environmental impact is localized and managed through regulatory compliance.

The plant discharges into a receiving water body within the Mississippi River basin, which drains into the Gulf of Mexico. The local watershed supports diverse aquatic life and is part of a larger network of streams and rivers that provide habitat for fish and migratory birds. Downstream ecosystems benefit from the plant's secondary treatment, which reduces nutrient loads and helps prevent eutrophication in receiving waters.